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Wet/Wet Differential Pressure Transmitter

Series 647

Monitor differential pressure in air/liquid flow systems, HVAC automation, pneumatic systems and process control with the Series 647 Wet/Wet Differential Pressure Transmitter. Units are temperature compensated and provide a 4 to 20 mA output signal which can be interfaced with chart recorders, data loggers and computerized monitoring and control systems.

  • Service: Compatible gases or liquids on both pressure and reference sides
  • Wetted Materials: Brass, vinyl, glass-filled polyester, silicon, and florosilicone
  • Accuracy: ±1.0% FS
  • Stability: ±1.5% FS output/year
  • Temperature Limits: 32 to 122°F (0 to 50°C)
  • Pressure Limits: Ranges 1" w.c. to 5 psi: 20 psi, 15 psi range: 45 psi, 30 psi range : 60 psi
  • Thermal Effects: Zero: ±0.05% FS/°F, Span: ±0.05% rdg/°F
  • Power Requirements: 18 to 30 VDC
  • Output Signal: 4 to 20 mA, 2-wire
  • Zero and Span Adjustments: Adjustable, ±10%
  • Loop Resistance: 400 ? @ 18 VDC, 600 ? @ 24 VDC, 1000 ? @ 30 VDC
  • Electrical Connection: Screw terminals, reverse polarity protected
  • Process Connections: Two 1/8" female NPT
  • Housing: Gasketed steel epoxy painted, NEMA 4 (IP56)
  • Weight: 14 oz (397 g)

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